# encoding: utf-8
class BaseUploader < CarrierWave::Uploader::Base

  # Include RMagick or MiniMagick support:
  # include CarrierWave::RMagick
  # include CarrierWave::MiniMagick
  #解决中文文件名
  CarrierWave::SanitizedFile.sanitize_regexp = /[^[:word:]\.\-\+]/
  # Choose what kind of storage to use for this uploader:
  storage :file
  # storage :fog

  # Override the directory where uploaded files will be stored.
  # This is a sensible default for uploaders that are meant to be mounted:
  def store_dir
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end

  def timestamp
    @timestamp ||= "#{Time.now.strftime('%Y-%m-%d')}"
  end

  def original_filename
    @original_filename
  end

  def filepath
    "#{timestamp}/#{filename}"
  end

  #文件大小限制,单位 默认3M
  def file_size_limit
    3
  end

  # Override the filename of the uploaded files:
  # Avoid using model.id or version_name here, see uploader/store.rb for details.

  def filename
    if original_filename
      @name ||= Digest::MD5.hexdigest(File.dirname(current_path))
      "#{@name}.#{file.extension}"
    end

  end

  def store!(new_file=nil)
    if new_file.size>file_size_limit*1024*1024
      raise CarrierWave::IntegrityError,"文件大小不能超过#{file_size_limit}M"
    end
    super new_file
  end

  # Provide a default URL as a default if there hasn't been a file uploaded:
  # def default_url
  #   # For Rails 3.1+ asset pipeline compatibility:
  #   # ActionController::Base.helpers.asset_path("fallback/" + [version_name, "default.png"].compact.join('_'))
  #
  #   "/images/fallback/" + [version_name, "default.png"].compact.join('_')
  # end

  # Process files as they are uploaded:
  # process :scale => [200, 300]
  #
  # def scale(width, height)
  #   # do something
  # end

  # Create different versions of your uploaded files:
  # version :thumb do
  #   process :scale => [50, 50]
  # end

  # Add a white list of extensions which are allowed to be uploaded.
  # For images you might use something like this:
  # def extension_white_list
  #   %w(jpg jpeg gif png)
  # end
  #

end
